Dough mixer and kneader.



' 0. 1). 111001111111 1". DOUGH MIXER AND KNEADEIL APPLICATION FILEDOUT. 20, 1910.

Patented Fe b.21, 1911.

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- fiwekfor; 0/22/91" A Waoaruff 4!", life/way UNITED STATES PATENTUFFTQE.

OLIVER D. WOODRUFF, 0F SOUTHINGTON, CONNECTICUT.

DOUGH MIXER AND KNEADER.

To an whom it *magconcm;

Be it known tliat'I, OLIVER D. lVooDRUrF, a citizen of the UnitedStates, and a resident of Southington, in thecounty of Hartford andState of Connecticut, have invented certain new and useful Improvementsin Dough Mixers and Kneaders', of which the following is aspecification.

This inventionrelates to mechanical dough mixers and kneaders for breadand the like and has for its object to provide a device of the classspecified simple in construction and which can be manufactured atlowcost.

To these ends my improvements comprise means illustrated in theirpreferred form in the accompanying drawings wherein Figure l'is a sideelevation ofthe entire apparatus with portions of the pan broken away tomoreclearly show details. Fig. 2 is a plan view corresponding with whatisshown in Fig. 1. Fig.3 is anenlarged cletail elevation of my improvedmeans for securing the device to the pan. Fig. 4 is a perspective viewof the clamping shoe.

Fig.5 is a plan'view of the clamping por tion of the main bracket. Fig.6 is a perspective view'of the clamp. Fig. 7 is a reversed plan view ofa portion of said clamp. Fig. 8 is a side elevation of the rotor andFig. 9 is a plan view thereof.

p My present invention is in the nature of improvements in simplicity ofconstruction and operation and in economy of manufacture, on the devicesdescribed and claimed in my Letters Patent 815,7 7 5 of March 20, 1906and 842509 of Jan. 29, 1907. The de vices of those patents eachcomprised vertical uprights which had to becarefully gaged in height tocorrespond with the height of the pan or vice versa and said uprightsrequired more or less elaborate fastening devices. Also when saidfastening devices were loosened the supportingarm was free to fall intothe receptacle. In my present improvements I have entirely done awaywith said uprights and have materially simplified the means for securingmy improved device to the pan. Also I have provided means whereby whenthe fastening device is loosened and even swung back into idle positionthe apparatus will remain in operable position and yet is free to beinstantly lifted up and removed with one hand from the receptacle.

Referring now more particularly to the drawings receptacle 0r pan 2 hasrotor 3 Specification of Letters Patent.

Application filed 0ctober'20, 1910.

ment 12.

Patented Feb. 21, 1911.

Serial No; 588,147.

suitably supported therein by arm4 in which said rotor isrevolublysecured at 5 andhas crank 6 removably fixed thereto at 7. Receptacle 2may be secured to any suitable support such as table 8 by means of clamp9 preferably having gripping means 10 conforming to the contourofreceptacle foot 11.

Rotor supporting arm 4 is provided with abutment 12 for engagement withthe inner face of receptacle 2 and extending outwardly from the upperpart of said abutment is platform 13 overhanging edge 14 of saidreceptacle and havingportion 130 out wardly reaching therefrom. Saidplatform is provided with one or more openings as 15, 16 t-herethronghon either side of portion 130 for the passage of lower arms 29, 30, of Cclamp 20. These openings preferably comprise two parallelslots 15,16normal to'ab'ut C clamp 20 comprises upper arm or head 21 having clampscrew 22 threaded therein. Said screw has the usual winged head 23 andits point terminates in swivel shoe 24 between ears 25, 26 wherebyturning of said shoe is prevented. Ears 25, 26 terminate in feetas 27 ofear 25 to enable clamp head 21 to be easily moved from the idle positionof Fig. 3 to the locking position of Fig. 1 without shoe 24 catching oncorner 28 of'arm 4. Clamp 20 is provided preferably with two lower arms29, 30 and pivotally attached thereto at 31 directly in the plane ofscrew 22 is shoe 32. Said shoe 32 comprises front abutment 33 forengagement with the outer face of receptacle 2 and is providedpreferably with two rearwardly extending ears 34, 35 terminating in rearabutments 36, 37 for engagement with the under face of platform 13. Saidshoe 32 is provided with hole 340 through ears 34, 35 between frontabutment 33 andrear abutments 36, 37 forpivotal attachment to clamp 20as already described. To suitably guide shoe 32 from its idle to itsoperative positions I provide guide rails 17, 18 on the under side ofplatform 13 for engagement with upper corners 38, 39 of front abutment33. Said guide rails 17, 18 terminate at their inner ends in retainingears as 19 of rail 17 for engagement with rim 14 of receptacle 2 incoaction with abutment 12 in engagement with the inner face of saidreceptacle for temporarily sustaining arm 4 in position when the lockingmeans is in its inoperative position (Fig. 3).

The apparatus by means of my improvements can thus be effectivelyassembled on the receptacle or removed therefrom with one hand andduring such manipulation arm 4 and the mechanism carried thereby iseffectively prevented from falling into the receptacle or being in anyway di'sarranged.

I claim:

1. In fastening means for the arm of a mixer and kneader, thecombination of an abutment on the arm, a platform projecting from theupper part thereof, an opening through the platform, a C clamp having anupper arm bearing a clamp screw and a lower arm adapted to pass throughsaid platform opening for coaction with the abutment for gripping anobject therebetween.

2. In fastening means for the arm of a mixer and kneader, thecombination of an abutment on the arm, a platform projecting from theupper part thereof, retaining ears projecting downwardly from theplatform for coaction with said abutment for temporarily sustaining thearm in position, an opening through said platform, a C clamp having anupper arm bearing a clamp screw and a lower arm adapted to pass throughsaid platform opening for coaction with the abutment for gripping anobject therebetween. 7

3. In fastening means for the arm of a mixer and kneader, thecombination of an abutment on the arm, a platform projecting from theupper part thereof, an opening through the platform, a C clamp having anupper arm bearing a clamp screw and a lower arm adapted to pass throughsaid platform opening and having pivotally attached thereto a shoe, forcoaction with the abutment for gripping an object therebetween.

4:. A mixer and kneader, including in combination a receptacle, a rotortherein, a supporting arm for the rotor, means for securing said arm tothe receptacle comprising an abutment on the arm, a platform projectingoutwardly from the upper part of said abutment, an opening through theplat form, a C clamp having an upper arm bearing a clamp screw and alower arm adapted to pass through said platform opening, a stop lug onthe clamp for engagement with the upper face of said platform and a shoepivotally attached to said lower clamp arm for coaction with theabutment for gripping the receptacle.

5. A mixer and kneader, including in combination a receptacle, a rotortherein, a supporting arm for the rotor, means for securing said arm tothe receptacle, comprising an abutment on the arm for engagement withthe inner face of the receptacle, a platform on the arm oversaid shoebeing pivotally attached between its front and rear abutments to thelower arm of the C clamp and guide rails for said shoe on the under faceof said platform, said guide rails terminating at their inner ends inretaining ears for coaction with the arm abutment for temporarilysustaining the arm in position.

6. In fastening means for the arm of a mixer and kneader, thecombination of an abutment on the arm, a platform having an outwardlyreaching portion projecting from the upper part thereof, a C-clamphaving an upper arm bearing a clamp screw and two lower arms adapted tostraddle said outwardly reaching portion of the platform for co-actionwith the abutment for gripping an object therebetween.

7 In fastening means for the arm of a mixer and kneader, the combinationof an abutment on the arm, a platform havin an outwardly reachingportion projecting from the upper part thereof, a C-clamp having anupper arm bearing a clamp screw, and a pair of lower arms adapted tostraddle said outwardly reaching portion of the platform and having ashoe pivotally. attached to said lower arms for co-action with theabutment for gripping an object therebetween.

Signed at New York, N. Y., this 17th day of October 1910 before twosubscribing wit- Witnesses:

ANNA M. ST. JOHN, CAROLINE A. GRAY.

